A B C D
E F G
H I J
K L M
N O P
Q R S
T U V
W X Y Z
0 1
2 3 4 5 6 7
8 9
E
Expected lifetime
Anticipated length of use for an LED. The expected lifetime of an LED is measured at the point when the sign has degraded to 50 percent of its original intensity. LEDs have a typical expected life of 50,000 to 100,000 hours (as specified by the manufacturer).
A B C D
E F G
H I J
K L M
N O P
Q R S
T U V
W X Y Z
0 1
2 3 4 5 6 7
8 9